Open Source API Gateways
An API gateway is an entry point between clients and backend services. It routes requests to the right destination and can apply authentication, rate limits, traffic policies, and request or response transformations. By centralizing these functions, gateways help teams manage service boundaries, protect backends, and make APIs easier to expose and operate across distributed or cloud environments.
Open source options include reverse proxies, cloud-native gateways, serverless integrations, and gateways for AI or model services. When choosing one, consider protocol support, deployment requirements, scalability, security features, observability, and integration with your existing infrastructure. Check the license, documentation, release history, and community or maintainer activity to assess long-term fit. These tools are useful for developers and platform teams managing public APIs, internal services, or connections to external providers.
3 repositories · updated September 12, 2026
A3M Router: Biology-Inspired LLM Routing for Cost Savings and Performance
A3M Router is an open-source, biology-inspired LLM router designed to optimize costs and performance across over 80 providers. It leverages principles like swarm intelligence and neural plasticity to offer adaptive, resilient, and cost-effective AI routing. This tool helps users save significantly on AI costs by intelligently selecting the best model for each query.
AnythingMCP: AI-Empowered Gateway for Custom Claude, ChatGPT, Gemini Connectors
AnythingMCP is a self-hosted, open-source AI-empowered gateway that transforms existing APIs, databases, and MCP servers into custom connectors for leading AI models like Claude, ChatGPT, and Gemini. It enables no-code integration of REST, SOAP, GraphQL, and SQL sources into the Model Context Protocol, featuring robust authentication, access control, and audit logging. The platform also includes over 175 pre-built adapters for common services, simplifying complex integrations.
MCPHub: Unified Management and Dynamic Routing for MCP Servers
MCPHub is a powerful open-source platform designed for centralized management and dynamic organization of multiple Model Context Protocol (MCP) servers and APIs. It transforms these services into streamable HTTP (SSE) endpoints, offering flexible routing strategies including intelligent semantic routing and group-based access. This solution simplifies the deployment and scaling of AI-driven applications by providing a unified interface and robust control features.